Entrainment-tester.



H. S. TRUSCOTT.

ENTRAINMENT TESTER.

APPLICATION FILED AUG. 14, 1913.

1 142,287. Patented June 8, 1915 IHE NORRIS PETERS (:0. PHUTO'LITHO" WASHINGTON L) c.

@ v v TE sra'rns mm anion ENTRAINMENT-TESTER.

Specification of Letters Patent.

Patented June 8, 1915.-

. Application filed August 14, 1913 Serial No. 784,759. 7

This invention relates to means for determining the losses by entrainment in evaporating apparatus.

It is particularly adapted for. use in connection with the vapor pipes between vacuum pans or evaporating effects and their condensers such as are commonly used in sugar house work.

The sugars or other materials which are lost by being carried over in the vapor from the cell to the condenser and then discharged with the waste water are termed entrainment losses. The present method of ascertaining these losses is by sampling the waste water from the condenser and determining the losses by chemical analysis of these samplesythe results being more or less. inaccurate and unreliable. Entrainment is seldom continuous, but is usually intermittent or at least is greater at some periods than at other periods during the evaporating process.

The object of the present invention is to provide means within the easy control of the operator for obtaining continuously representative samples. of the vapor in a con densed form and taken while the vapor is passing through the vapor pipe and before it reaches the condenser, thus eliminating from these samples the cooling waterused in the condenser. From the analysis of such samples the amountof these losses may be accurately determined, and by taking the samples at regular intervals'the periods during which entrainment occurs may be definitely ascertained. The operator is therefore thus kept informed, so that by regulating the evaporation the entrainment losses may be prevented or at least greatly reduced and a saving of sugar or other material thereby be effected which has heretofore been lost.

The invention contemplates a device introduced in the vapor pipe adjacent to the condenser, comprising a vapor receiving chamber open to receive the vapors moving One embodiment of my invention is disclosed in the structure illustrated in the accompanying drawings, forming a part 01" this specification, in which Figure 1 is a sectional elevation of an entrainment tester constructed in accordance with the present invention; Fig. 2 is a section on the line AB of Fig. 1; and Fig. 5

shows on a smaller scale the device applied to the vapor pipe between the cell of a vacuum pan or of an evaporator and its condenser.

Referring to the drawings, the cylindrical casing or body '1 of the device is tightly fitted in any well known manner through a hole in the top and the bottom respectively of the vapor pipe, preferably near the condenser, so that said casing or body 1 projects both above and below the vapor pipe. The vapor receiving chamber 2 is eccentrically located within the body 1, and an opening 3 is made in both the body 1 and the chamber 2 along that portion of their tangential'line of contact which is within the vapor pipe. lhe joints around the opening 8 between the body 1 and the chamber 2 are soldered or brazed so as to be air or water tight. Vapors moving in the vapor pipe toward the condenser, as shown by arrows in Fig. 1,

thus enter the chamber .2 through the opening 8. A circulation of cooling water to condense the vapors in the chamber 2 may be maintained through the body 1, the water entering through the nozzle 4 near the bottom and leaving through the nozzle 5 at the top, as shown. The cock 6, Y connection 7, and valves 8 and 9 are provided at the lower end of the device, as shown.

It will now be noted, that the chamber 2 is kept cooled by the surrounding water passing through the body 1, that the vapors entering the chamber 2 through the opening 3 Will be condensed Within said chamber, and that samples of the vapor thus condensed may be Withdrawn from the chamber 2 into one of the receptacles 10 by operating the cock 6 and one of the valves 8 or 9. The device does not obstruct the flow of vapor in the vapor pipe, but assists the condenser, be: cause the vapor in contact With the outside of the body 1 is condensed and the vapors entering the opening 3 are condensed Within located Within said vapor pipe, means for cooling said chamber, and means for With.

drawing samples of the vapor condensed Within said chamber, substantially as de scribed.

2. The combination With a vapor pipe, of a vapor receiving chamber adapted to collect a portion of the vapor passing through said pipe, means to cool the vapor so collected to condense the same, and means for Withdrawing portions of the condensed vapor, substantially as described.

In testimony. whereof I aifix my signature, in presence of two Witnesses. V g HAROLD'SAGE TRUSCOTT. Witnesses: V

J. B. FAssoTIr, AINo J ET.

Qopies of this patent may be obtained for five cents each, by addressing the Commissioner oi! Patents,

Washington, D. C. V 

